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Casement Windows in Maryland, DC & Northern Virginia

Casement windows crank open on a side hinge, so the whole sash swings clear of the frame. You get the full opening for airflow, a clean unobstructed view, and a sash that pulls tight against a compression seal when you close it.

That tight seal is why casements are among the most airtight, energy-efficient windows you can put in a home. Hallmark installs Vytex casement windows across Maryland, DC, and Northern Virginia, backed by a lifetime warranty and our own workmanship guarantee.

25+Years Installing
Windows in MD & VA
CertifiedAuthorized Vytex
Dealer & Installer
LifetimeWarranty Available
on Vytex Windows
5-Star& A+ Rated by
Local Homeowners

Maryland’s Vytex Casement Window Installers

A casement opens like a door on a side hinge, cranked out by a folding handle. Because the sash swings completely out of the opening, you get airflow across the whole window instead of the half you get from a double-hung — and nothing blocks the glass, so the view and the daylight come through clean.

When you close a casement, the sash presses against weatherstripping around the entire frame, the way a refrigerator door seals. That compression is what makes casements so tight against drafts. Vytex builds theirs on the same multi-chamber vinyl platform as the rest of their line, so you get strong thermal numbers without an exotic price.

Hallmark has installed windows across Montgomery County, Howard County, Anne Arundel County, Prince George’s County, and Northern Virginia for more than 25 years. We help you size and spec the right casement for each opening, then install it so it seals and operates the way it should.

Casement is one of several styles in our replacement window lineup, all available as energy-efficient Vytex windows.

Why Homeowners Choose Casement Windows

  • Full airflow — the sash swings all the way open, so the entire window ventilates, not just the lower half.
  • An airtight seal — the sash compresses against the frame when latched. Vytex casements rate .06 air infiltration and are ENERGY STAR 7.0 certified.
  • Unobstructed view — no center check rail across the middle, so you get one clean pane of glass and more daylight.
  • Easy to reach — a crank handle opens them over a kitchen sink or counter where lifting a sash is awkward.
  • Egress-friendly — one large opening sash usually meets bedroom and basement egress code.
  • Simple to clean — the sash swings in far enough to wash the outside glass from inside the house.

    • Vytex Casement Construction

    Multi-chamber vinyl frame with ThermaCore reinforcement and VyFoam insulation in the chambers, so the frame itself resists heat transfer instead of just holding the glass.

    Fusion-welded corners — the frame and sash corners are welded, not screwed or glued, which is what keeps the window square and leak-free over decades.

    Low-E, argon-filled glass in several packages up to TripleSilverLoE, ENERGY STAR 7.0 certified for this region, with a U-factor as low as .22.

    17 exterior colors through VyCoat, interior laminate options, and multiple hardware finishes. A folding crank handle tucks out of the way of blinds and shades.

    Vytex Casement Construction

    Why Maryland Homeowners Choose Hallmark

    🏆

    25+ Years, Local

    We have installed windows across the DC metro for more than 25 years. That experience means faster installs, cleaner results, and no learning curve on your job.

    ✅

    Authorized Vytex Dealer

    As a certified Vytex partner we have direct access to the full line, manufacturer pricing, and factory warranty support.

    🔧

    Our Own Crews

    A great window installed poorly leaks and fails early. Our trained crews install every unit and back it with Hallmark’s workmanship warranty.

    📍

    Local Service

    We’re a Maryland company, not a national chain. Need us after the install? You reach us directly, not a call center.

    Casement Window FAQ

    Are casement windows more energy efficient than double-hung windows?
    Usually, yes. A casement sash closes against the frame with compression weatherstripping, so there is less air leakage than a double-hung that slides in a track. Vytex casements are ENERGY STAR 7.0 certified and reach a .06 air infiltration rating, with a U-factor as low as .22 on the most efficient glass package.
    Where do casement windows work best in a house?
    Over a kitchen sink or counter, where a crank handle is easier to reach than lifting a sash. They also suit any room where you want the full opening for airflow, and bedrooms or basements that need an egress window.
    Do casement windows meet egress code?
    In most sizes, yes. The single sash swings fully open, which usually satisfies bedroom and basement egress requirements. We confirm the clear opening against your rough opening before you order.
    What colors and finishes are available?
    Vytex offers 17 exterior colors through its VyCoat finish, plus interior laminate options and several hardware finishes including oil-rubbed bronze and brushed chrome. White is standard; the rest are options.
    How long do Vytex casement windows last?
    The vinyl frame and the sealed insulated glass unit carry a lifetime limited warranty that transfers to the next owner if you sell. Hallmark adds its own workmanship warranty on the installation.
    How long does installation take?
    Most casement replacements are a one-day job. We measure the opening, remove the old window, set and shim the new unit, seal and flash it, then clean up and haul the old window away.

    Casement Window Installation Service Areas

    Hallmark installs Vytex casement windows throughout Maryland, Washington DC, and Northern Virginia.

    Montgomery County, MD

    Rockville · Bethesda · Silver Spring · Gaithersburg · Germantown · Potomac · Chevy Chase · Kensington · Olney

    Prince George’s County & DC

    College Park · Bowie · Greenbelt · Hyattsville · Laurel · Lanham · Upper Marlboro · Washington DC

    Northern Virginia

    Fairfax · Arlington · Alexandria · McLean · Vienna · Reston · Herndon · Annandale · Springfield

    Frederick County, MD

    Frederick · Brunswick · Middletown · Mount Airy · Walkersville · New Market · Urbana

    Howard County, MD

    Columbia · Ellicott City · Clarksville · Elkridge · Jessup · Savage · Fulton

    Anne Arundel County, MD

    Annapolis · Glen Burnie · Severna Park · Pasadena · Odenton · Crofton · Millersville · Arnold

    Ready for New Casement Windows?

    Schedule a free, no-obligation in-home estimate. We measure your openings, walk you through the glass and color options, and give you a clear price — no pressure.

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